Analysis of Bovine Serum Albumin Ligands from Puerariae flos Using Ultrafiltration Combined with HPLC-MS

Figure 2

The chromatograms of (a) Puerariae flos extract and (b) the filtrate after ultrafiltration (1: puerarin, 2: daidzin, 3: 3′-methoxy daidzin, 4: ononin, 5: tectorigenin, 6: biochanin A, 7: genistein, 8: 3′-methoxy daidzein, and 9: irisolidone).